Australian freestyle swimmer James Magnussen attends a training session at the Manchester Aquatics centre on July 16. Magnussen is the favourite for the 100m freestyle after winning last year's world ... more 

Australian freestyle swimmer James Magnussen attends a training session at the Manchester Aquatics centre on July 16. Magnussen is the favourite for the 100m freestyle after winning last year's world championships and setting a world record time of 47.10 secs less